Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao anh cua snippets" » "ha anh cua snippets", "cao anh cua snippets", "hai anh cua snippets", "hao manh cua snippets", "hao hanh cua snippets", "hao canh cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hao anh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao anh cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao anh cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao anh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.